PMID- 15788193
OWN - NLM
STAT- MEDLINE
DCOM- 20050712
LR  - 20181201
IS  - 0160-4120 (Print)
IS  - 0160-4120 (Linking)
VI  - 31
IP  - 4
DP  - 2005 May
TI  - Evaluation of the concentration of HCH, DDT, HCB, PCB and PAH in the sediments 
      along the lower stretch of Hugli estuary, West Bengal, northeast India.
PG  - 523-34
AB  - Detailed analyses of persistent organic pollutants (POPs) such as 
      hexachlorocyclohexane (HCH) isomers (HCHs), dichlorodiphenyltrichloro ethane 
      (DDT) and its metabolites (DDTs), hexachlorobenzene (HCB) and congeners of 
      polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) in 
      surface sediments from the coastal estuarine environment of West Bengal, 
      northeast India allowed the evaluation of the contamination status, distribution 
      and possible pollution sources. HCH, DDT, HCB, PCB and PAH were identified 
      compounds in all the samples, whereas the concentrations of chlorinated 
      pesticides (trans-eptachlorepoxide, dieldrin, endrin, metaoxychlor and mirex) 
      were below the detection limits and were not of great concern. The pesticides did 
      demonstrate markedly different distributions reflecting different agricultural 
      and domestic usage in the region. The range of concentrations of HCH, HCB, DDT 
      and PCBs in the sediments were 0.11-0.40, <0.05-0.98, 0.18-1.93 and 0.18-2.33 
      ng/g dry wt, respectively. Overall elevated levels of HCB, DDT and PCB were 
      recorded at Babughat, a very closely located site of the metropolitan megacity 
      Calcutta. Fluoranthene (flu) and pyrene (py), the dominant 4-ring PAHs, also 
      showed an abrupt elevated concentrations at Babughat with values of 214 and 144 
      ng/g dry wt, respectively. Among the isomers and metabolites of HCH, DDT and PCB, 
      alpha-HCH, pp'-DDT and PCB (101), PCB (118), PCB(153) and PCB (138) were found to 
      be dominant. High ratios of metabolites of DDT to SigmaDDTs reveal recent use of 
      DDT in this coastal environment. Fluoranthene, pyrene, 1,2-benzo(a)anthracene and 
      chrysene formed the dominant congeners out of 19 identified PAHs. The sources of 
      contamination are closely related to human activities such as domestic and 
      industrial discharge, automobile exhausts, street runoff, slum sewage, 
      agricultural chemicals and soil erosion due to deforestation as well as 
      atmospheric transport. This study is compared to other coastal and estuarine 
      environments in India and abroad. The baseline data can be used for regular 
      ecological monitoring, considering the industrial and agricultural growth around 
      this important estuarine ecosystem.
FAU - Guzzella, L
AU  - Guzzella L
AD  - Water Research Institute-CNR, 25, Mornera Street, Brugheno 20047, Milan, Italy. 
      guzzella@irsa.rm.cnr.it
FAU - Roscioli, C
AU  - Roscioli C
FAU - Vigano, L
AU  - Vigano L
FAU - Saha, M
AU  - Saha M
FAU - Sarkar, S K
AU  - Sarkar SK
FAU - Bhattacharya, A
AU  - Bhattacharya A
LA  - eng
PT  - Journal Article
DEP - 20041119
PL  - Netherlands
TA  - Environ Int
JT  - Environment international
JID - 7807270
RN  - 0 (Environmental Pollutants)
RN  - 0 (Industrial Waste)
RN  - 0 (Pesticides)
RN  - 0 (Polycyclic Aromatic Hydrocarbons)
RN  - 0 (Sewage)
RN  - 0 (Vehicle Emissions)
RN  - 0 (Water Pollutants, Chemical)
RN  - DFC2HB4I0K (Polychlorinated Biphenyls)
SB  - IM
MH  - Agriculture
MH  - Cities
MH  - Environmental Pollutants/*analysis
MH  - Geologic Sediments/chemistry
MH  - India
MH  - Industrial Waste
MH  - Pesticides/*analysis
MH  - Polychlorinated Biphenyls/*analysis
MH  - Polycyclic Aromatic Hydrocarbons/*analysis
MH  - Sewage
MH  - Vehicle Emissions
MH  - Water Movements
MH  - Water Pollutants, Chemical/*analysis
EDAT- 2005/03/25 09:00
MHDA- 2005/07/13 09:00
CRDT- 2005/03/25 09:00
PHST- 2004/06/10 00:00 [received]
PHST- 2004/10/15 00:00 [accepted]
PHST- 2005/03/25 09:00 [pubmed]
PHST- 2005/07/13 09:00 [medline]
PHST- 2005/03/25 09:00 [entrez]
AID - S0160-4120(04)00189-8 [pii]
AID - 10.1016/j.envint.2004.10.014 [doi]
PST - ppublish
SO  - Environ Int. 2005 May;31(4):523-34. doi: 10.1016/j.envint.2004.10.014. Epub 2004 
      Nov 19.